(19)

(11)

EP 1 608 451 A1

(12)

(43) Date of publication: 28.12.2005 Bulletin 2005/52 (21) Application number: 04722908.3 (22) Date of filing: 24.03.2004

(51) International Patent Classification (IPC)7: B01D 39/16, B01D 27/02 (86) International application number: PCT/GB2004/001259 (87) International publication number: WO 2004/087292 (14.10.2004 Gazette 2004/42)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 31.03.2003 GB 0307397 (71) Applicant: Selsdon, Leslie Donald Marble Arch,London W1H 7DQ (GB)	(72) Inventor: Selsdon, Leslie Donald Marble Arch,London W1H 7DQ (GB) (74) Representative: Jones, Graham Henry  Graham Jones & Company Blackheath 77 Beaconsfield Road London SE3 7LG London SE3 7LG (GB)